Reaktion #2266341

Reaktionsgleichung

1,10-phenanthroline

4-cyanoaniline

sodium tert-butoxide

Dodecane

5-iodo-m-xylene

→

product

Ausbeute 69.0%

N-(3,5-Dimethylphenyl)-4-cyanoaniline

Ausbeute 69.0%

Lösungsmittel

dioxane

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigeevacuated
2. 2
   SonstigeThe Schlenk tube was sealed
3. 3
   TemperaturThe resulting brown suspension was cooled to room temperature
4. 4
   Filtrationfiltered through a 0.5×1 cm pad of silica gel eluting with 10 mL of ethyl acetate
5. 5
   EinengenThe filtrate was concentrated
6. 6
   Sonstigethe residue was purified by flash chromatography on silica gel (2×15 cm; hexane-ethyl acetate 5:1; 10 mL fractions)

Vorschrift

An oven-dried resealable Schlenk tube was charged with CuI (10 mg, 0.0525 mmol, 5.0 mol %), 1,10-phenanthroline (20 mg, 0.111 mmol), 4-cyanoaniline (146 mg, 1.24 mg), sodium tert-butoxide (145 mg, 1.51 mmol), evacuated and backfilled with argon. Dodecane (235 μL), 5-iodo-m-xylene (150 μL, 1.04 mmol) and dioxane (1.0 mL) were added under argon. The Schlenk tube was sealed and the reaction mixture was stirred magnetically at 110° C. for 23 h. The resulting brown suspension was cooled to room temperature and filtered through a 0.5×1 cm pad of silica gel eluting with 10 mL of ethyl acetate. The filtrate was concentrated and the residue was purified by flash chromatography on silica gel (2×15 cm; hexane-ethyl acetate 5:1; 10 mL fractions). Fractions 7-16 provided 159 mg (69% yield) of the product as white crystals. 1H NMR (400 MHz, CDCl3): δ 7.51-7.47 (m, 2H), 6.91-6.95 (m, 2H), 6.83-6.80 (m, 2H), 6.80-6.78 (m, 1H), 6.02 (br s, 1H), 2.33 (q, J=0.5 Hz, 6H).

Quelle